Most listings are in the $10's per square foot per year. The Lake Elsinore submarket is seeing a an increase in rates. In the last 3 months, the median rate rose $4 per sqft per year. That's a 24% increase in rent.
Compared to the rest of the Metropolitan Los Angeles market, the Lake Elsinore region has less expensive rates, so you should have no trouble finding a great deal in this discounted submarket.
In the last 90 days, 14 listings have been posted online, which means spaces most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,290 sqft. Most buildings in this region are around 2 floors. Most buildings in this region were built in 1989 and are Class B.